diff mbox series

drivers: parisc: ccio-dma.c: Added tab insead of spaces

Message ID 20210428153942.uyips5a3osoz3nju@kewl-virtual-machine (mailing list archive)
State New
Headers show
Series drivers: parisc: ccio-dma.c: Added tab insead of spaces | expand

Commit Message

Shubhankar Kuranagatti April 28, 2021, 3:39 p.m. UTC
Single space has been removed.
It has been replaced with tabs.
This is done to maintain code uniformity.

Signed-off-by: Shubhankar Kuranagatti <shubhankarvk@gmail.com>
---
 drivers/parisc/ccio-dma.c | 88 +++++++++++++++++++--------------------
 1 file changed, 44 insertions(+), 44 deletions(-)

Comments

kernel test robot April 28, 2021, 7:37 p.m. UTC | #1
Hi Shubhankar,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on hp-parisc/for-next]
[also build test WARNING on v5.12 next-20210428]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Shubhankar-Kuranagatti/drivers-parisc-ccio-dma-c-Added-tab-insead-of-spaces/20210428-235316
base:   https://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git for-next
config: parisc-defconfig (attached as .config)
compiler: hppa-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/0day-ci/linux/commit/d69bc48f1b1d854da39ad6d1809d2a009d9d4de3
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Shubhankar-Kuranagatti/drivers-parisc-ccio-dma-c-Added-tab-insead-of-spaces/20210428-235316
        git checkout d69bc48f1b1d854da39ad6d1809d2a009d9d4de3
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 ARCH=parisc 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

   drivers/parisc/ccio-dma.c: In function 'ccio_alloc_range':
   drivers/parisc/ccio-dma.c:378:4: error: 'else' without a previous 'if'
     378 |  } else if (pages_needed <= 16) {
         |    ^~~~
   drivers/parisc/ccio-dma.c:380:4: error: 'else' without a previous 'if'
     380 |  } else if (pages_needed <= 32) {
         |    ^~~~
   drivers/parisc/ccio-dma.c:386:4: error: 'else' without a previous 'if'
     386 |  } else {
         |    ^~~~
   drivers/parisc/ccio-dma.c:431:1: error: invalid storage class for function 'ccio_free_range'
     431 | ccio_free_range(struct ioc *ioc, dma_addr_t iova, unsigned long pages_mapped)
         | ^~~~~~~~~~~~~~~
>> drivers/parisc/ccio-dma.c:430:1: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     430 | static void
         | ^~~~~~
   drivers/parisc/ccio-dma.c:555:1: warning: 'inline' is not at beginning of declaration [-Wold-style-declaration]
     555 | static void CCIO_INLINE
         | ^~~~~~
   drivers/parisc/ccio-dma.c:556:1: error: invalid storage class for function 'ccio_io_pdir_entry'
     556 | ccio_io_pdir_entry(u64 *pdir_ptr, space_t sid, unsigned long vba,
         | ^~~~~~~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:627:1: error: invalid storage class for function 'ccio_clear_io_tlb'
     627 | ccio_clear_io_tlb(struct ioc *ioc, dma_addr_t iovp, size_t byte_cnt)
         | ^~~~~~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:660:1: error: invalid storage class for function 'ccio_mark_invalid'
     660 | ccio_mark_invalid(struct ioc *ioc, dma_addr_t iova, size_t byte_cnt)
         | ^~~~~~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:702:1: error: invalid storage class for function 'ccio_dma_supported'
     702 | ccio_dma_supported(struct device *dev, u64 mask)
         | ^~~~~~~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:724:1: error: invalid storage class for function 'ccio_map_single'
     724 | ccio_map_single(struct device *dev, void *addr, size_t size,
         | ^~~~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:786:1: error: invalid storage class for function 'ccio_map_page'
     786 | ccio_map_page(struct device *dev, struct page *page, unsigned long offset,
         | ^~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:803:1: error: invalid storage class for function 'ccio_unmap_page'
     803 | ccio_unmap_page(struct device *dev, dma_addr_t iova, size_t size,
         | ^~~~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:845:1: error: invalid storage class for function 'ccio_alloc'
     845 | ccio_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag,
         | ^~~~~~~~~~
   drivers/parisc/ccio-dma.c:879:1: error: invalid storage class for function 'ccio_free'
     879 | ccio_free(struct device *dev, size_t size, void *cpu_addr,
         | ^~~~~~~~~
   In file included from drivers/parisc/iommu-helpers.h:2,
                    from drivers/parisc/ccio-dma.c:896:
   include/linux/prefetch.h:55:20: error: invalid storage class for function 'prefetch_range'
      55 | static inline void prefetch_range(void *addr, size_t len)
         |                    ^~~~~~~~~~~~~~
   include/linux/prefetch.h:66:20: error: invalid storage class for function 'prefetch_page_address'
      66 | static inline void prefetch_page_address(struct page *page)
         |                    ^~~~~~~~~~~~~~~~~~~~~
   In file included from drivers/parisc/ccio-dma.c:896:
   drivers/parisc/iommu-helpers.h:15:1: error: invalid storage class for function 'iommu_fill_pdir'
      15 | iommu_fill_pdir(struct ioc *ioc, struct scatterlist *startsg, int nents,
         | ^~~~~~~~~~~~~~~
   drivers/parisc/iommu-helpers.h:101:1: error: invalid storage class for function 'iommu_coalesce_chunks'
     101 | iommu_coalesce_chunks(struct ioc *ioc, struct device *dev,
         | ^~~~~~~~~~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:908:1: error: invalid storage class for function 'ccio_map_sg'
     908 | ccio_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
         | ^~~~~~~~~~~
   drivers/parisc/ccio-dma.c:987:1: error: invalid storage class for function 'ccio_unmap_sg'
     987 | ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
         | ^~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:1020:19: error: initializer element is not constant
    1020 |  .dma_supported = ccio_dma_supported,
         |                   ^~~~~~~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:1020:19: note: (near initialization for 'ccio_ops.dma_supported')
   drivers/parisc/ccio-dma.c:1021:12: error: initializer element is not constant
    1021 |  .alloc =  ccio_alloc,
         |            ^~~~~~~~~~
   drivers/parisc/ccio-dma.c:1021:12: note: (near initialization for 'ccio_ops.alloc')
   drivers/parisc/ccio-dma.c:1022:12: error: initializer element is not constant
    1022 |  .free =   ccio_free,
         |            ^~~~~~~~~
   drivers/parisc/ccio-dma.c:1022:12: note: (near initialization for 'ccio_ops.free')
   drivers/parisc/ccio-dma.c:1023:15: error: initializer element is not constant
    1023 |  .map_page =  ccio_map_page,
         |               ^~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:1023:15: note: (near initialization for 'ccio_ops.map_page')
   drivers/parisc/ccio-dma.c:1024:17: error: initializer element is not constant
    1024 |  .unmap_page =  ccio_unmap_page,
         |                 ^~~~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:1024:17: note: (near initialization for 'ccio_ops.unmap_page')
   drivers/parisc/ccio-dma.c:1025:13: error: initializer element is not constant
    1025 |  .map_sg =  ccio_map_sg,
         |             ^~~~~~~~~~~
   drivers/parisc/ccio-dma.c:1025:13: note: (near initialization for 'ccio_ops.map_sg')
   drivers/parisc/ccio-dma.c:1026:15: error: initializer element is not constant
    1026 |  .unmap_sg =  ccio_unmap_sg,
         |               ^~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:1026:15: note: (near initialization for 'ccio_ops.unmap_sg')
   drivers/parisc/ccio-dma.c:1033:12: error: invalid storage class for function 'ccio_proc_info'
    1033 | static int ccio_proc_info(struct seq_file *m, void *p)
         |            ^~~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:1099:12: error: invalid storage class for function 'ccio_proc_bitmap_info'
    1099 | static int ccio_proc_bitmap_info(struct seq_file *m, void *p)
         |            ^~~~~~~~~~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:1122:21: error: invalid storage class for function 'ccio_find_ioc'
    1122 | static struct ioc * ccio_find_ioc(int hw_path)
         |                     ^~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:1212:12: error: invalid storage class for function 'ccio_probe'
    1212 | static int ccio_probe(struct parisc_device *dev);
         |            ^~~~~~~~~~
   drivers/parisc/ccio-dma.c:1217:11: error: 'ccio_probe' undeclared (first use in this function); did you mean 'ccio_free'?
    1217 |  .probe = ccio_probe,
         |           ^~~~~~~~~~
         |           ccio_free
   drivers/parisc/ccio-dma.c:1217:11: note: each undeclared identifier is reported only once for each function it appears in
   drivers/parisc/ccio-dma.c:1229:1: error: invalid storage class for function 'ccio_ioc_init'
    1229 | ccio_ioc_init(struct ioc *ioc)


vim +430 drivers/parisc/ccio-dma.c

^1da177e4c3f41 Linus Torvalds  2005-04-16  415  
^1da177e4c3f41 Linus Torvalds  2005-04-16  416  #define CCIO_FREE_MAPPINGS(ioc, res_idx, mask, size) \
^1da177e4c3f41 Linus Torvalds  2005-04-16  417          u##size *res_ptr = (u##size *)&((ioc)->res_map[res_idx]); \
^1da177e4c3f41 Linus Torvalds  2005-04-16  418          BUG_ON((*res_ptr & mask) != mask); \
^1da177e4c3f41 Linus Torvalds  2005-04-16  419  	*res_ptr &= ~(mask);
^1da177e4c3f41 Linus Torvalds  2005-04-16  420  
^1da177e4c3f41 Linus Torvalds  2005-04-16  421  /**
^1da177e4c3f41 Linus Torvalds  2005-04-16  422   * ccio_free_range - Free pages from the ioc's resource map.
^1da177e4c3f41 Linus Torvalds  2005-04-16  423   * @ioc: The I/O Controller.
^1da177e4c3f41 Linus Torvalds  2005-04-16  424   * @iova: The I/O Virtual Address.
^1da177e4c3f41 Linus Torvalds  2005-04-16  425   * @pages_mapped: The requested number of pages to be freed from the
^1da177e4c3f41 Linus Torvalds  2005-04-16  426   * I/O Pdir.
^1da177e4c3f41 Linus Torvalds  2005-04-16  427   *
^1da177e4c3f41 Linus Torvalds  2005-04-16  428   * This function frees the resouces allocated for the iova.
^1da177e4c3f41 Linus Torvalds  2005-04-16  429   */
^1da177e4c3f41 Linus Torvalds  2005-04-16 @430  static void
^1da177e4c3f41 Linus Torvalds  2005-04-16  431  ccio_free_range(struct ioc *ioc, dma_addr_t iova, unsigned long pages_mapped)
^1da177e4c3f41 Linus Torvalds  2005-04-16  432  {
^1da177e4c3f41 Linus Torvalds  2005-04-16  433  	unsigned long iovp = CCIO_IOVP(iova);
^1da177e4c3f41 Linus Torvalds  2005-04-16  434  	unsigned int res_idx = PDIR_INDEX(iovp) >> 3;
^1da177e4c3f41 Linus Torvalds  2005-04-16  435  
^1da177e4c3f41 Linus Torvalds  2005-04-16  436  	BUG_ON(pages_mapped == 0);
^1da177e4c3f41 Linus Torvalds  2005-04-16  437  	BUG_ON((pages_mapped * IOVP_SIZE) > DMA_CHUNK_SIZE);
^1da177e4c3f41 Linus Torvalds  2005-04-16  438  	BUG_ON(pages_mapped > BITS_PER_LONG);
^1da177e4c3f41 Linus Torvalds  2005-04-16  439  
^1da177e4c3f41 Linus Torvalds  2005-04-16  440  	DBG_RES("%s():  res_idx: %d pages_mapped %d\n", 
a8043ecb17bd2e Harvey Harrison 2008-05-14  441  		__func__, res_idx, pages_mapped);
^1da177e4c3f41 Linus Torvalds  2005-04-16  442  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
kernel test robot April 28, 2021, 9:44 p.m. UTC | #2
Hi Shubhankar,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on hp-parisc/for-next]
[also build test ERROR on v5.12 next-20210428]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Shubhankar-Kuranagatti/drivers-parisc-ccio-dma-c-Added-tab-insead-of-spaces/20210428-235316
base:   https://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git for-next
config: parisc-defconfig (attached as .config)
compiler: hppa-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/0day-ci/linux/commit/d69bc48f1b1d854da39ad6d1809d2a009d9d4de3
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Shubhankar-Kuranagatti/drivers-parisc-ccio-dma-c-Added-tab-insead-of-spaces/20210428-235316
        git checkout d69bc48f1b1d854da39ad6d1809d2a009d9d4de3
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 ARCH=parisc 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   drivers/parisc/ccio-dma.c: In function 'ccio_alloc_range':
>> drivers/parisc/ccio-dma.c:378:4: error: 'else' without a previous 'if'
     378 |  } else if (pages_needed <= 16) {
         |    ^~~~
   drivers/parisc/ccio-dma.c:380:4: error: 'else' without a previous 'if'
     380 |  } else if (pages_needed <= 32) {
         |    ^~~~
   drivers/parisc/ccio-dma.c:386:4: error: 'else' without a previous 'if'
     386 |  } else {
         |    ^~~~
>> drivers/parisc/ccio-dma.c:431:1: error: invalid storage class for function 'ccio_free_range'
     431 | ccio_free_range(struct ioc *ioc, dma_addr_t iova, unsigned long pages_mapped)
         | ^~~~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:430:1: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     430 | static void
         | ^~~~~~
   drivers/parisc/ccio-dma.c:555:1: warning: 'inline' is not at beginning of declaration [-Wold-style-declaration]
     555 | static void CCIO_INLINE
         | ^~~~~~
>> drivers/parisc/ccio-dma.c:556:1: error: invalid storage class for function 'ccio_io_pdir_entry'
     556 | ccio_io_pdir_entry(u64 *pdir_ptr, space_t sid, unsigned long vba,
         | ^~~~~~~~~~~~~~~~~~
>> drivers/parisc/ccio-dma.c:627:1: error: invalid storage class for function 'ccio_clear_io_tlb'
     627 | ccio_clear_io_tlb(struct ioc *ioc, dma_addr_t iovp, size_t byte_cnt)
         | ^~~~~~~~~~~~~~~~~
>> drivers/parisc/ccio-dma.c:660:1: error: invalid storage class for function 'ccio_mark_invalid'
     660 | ccio_mark_invalid(struct ioc *ioc, dma_addr_t iova, size_t byte_cnt)
         | ^~~~~~~~~~~~~~~~~
>> drivers/parisc/ccio-dma.c:702:1: error: invalid storage class for function 'ccio_dma_supported'
     702 | ccio_dma_supported(struct device *dev, u64 mask)
         | ^~~~~~~~~~~~~~~~~~
>> drivers/parisc/ccio-dma.c:724:1: error: invalid storage class for function 'ccio_map_single'
     724 | ccio_map_single(struct device *dev, void *addr, size_t size,
         | ^~~~~~~~~~~~~~~
>> drivers/parisc/ccio-dma.c:786:1: error: invalid storage class for function 'ccio_map_page'
     786 | ccio_map_page(struct device *dev, struct page *page, unsigned long offset,
         | ^~~~~~~~~~~~~
>> drivers/parisc/ccio-dma.c:803:1: error: invalid storage class for function 'ccio_unmap_page'
     803 | ccio_unmap_page(struct device *dev, dma_addr_t iova, size_t size,
         | ^~~~~~~~~~~~~~~
>> drivers/parisc/ccio-dma.c:845:1: error: invalid storage class for function 'ccio_alloc'
     845 | ccio_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag,
         | ^~~~~~~~~~
>> drivers/parisc/ccio-dma.c:879:1: error: invalid storage class for function 'ccio_free'
     879 | ccio_free(struct device *dev, size_t size, void *cpu_addr,
         | ^~~~~~~~~
   In file included from drivers/parisc/iommu-helpers.h:2,
                    from drivers/parisc/ccio-dma.c:896:
>> include/linux/prefetch.h:55:20: error: invalid storage class for function 'prefetch_range'
      55 | static inline void prefetch_range(void *addr, size_t len)
         |                    ^~~~~~~~~~~~~~
>> include/linux/prefetch.h:66:20: error: invalid storage class for function 'prefetch_page_address'
      66 | static inline void prefetch_page_address(struct page *page)
         |                    ^~~~~~~~~~~~~~~~~~~~~
   In file included from drivers/parisc/ccio-dma.c:896:
>> drivers/parisc/iommu-helpers.h:15:1: error: invalid storage class for function 'iommu_fill_pdir'
      15 | iommu_fill_pdir(struct ioc *ioc, struct scatterlist *startsg, int nents,
         | ^~~~~~~~~~~~~~~
>> drivers/parisc/iommu-helpers.h:101:1: error: invalid storage class for function 'iommu_coalesce_chunks'
     101 | iommu_coalesce_chunks(struct ioc *ioc, struct device *dev,
         | ^~~~~~~~~~~~~~~~~~~~~
>> drivers/parisc/ccio-dma.c:908:1: error: invalid storage class for function 'ccio_map_sg'
     908 | ccio_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
         | ^~~~~~~~~~~
>> drivers/parisc/ccio-dma.c:987:1: error: invalid storage class for function 'ccio_unmap_sg'
     987 | ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
         | ^~~~~~~~~~~~~
>> drivers/parisc/ccio-dma.c:1020:19: error: initializer element is not constant
    1020 |  .dma_supported = ccio_dma_supported,
         |                   ^~~~~~~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:1020:19: note: (near initialization for 'ccio_ops.dma_supported')
   drivers/parisc/ccio-dma.c:1021:12: error: initializer element is not constant
    1021 |  .alloc =  ccio_alloc,
         |            ^~~~~~~~~~
   drivers/parisc/ccio-dma.c:1021:12: note: (near initialization for 'ccio_ops.alloc')
   drivers/parisc/ccio-dma.c:1022:12: error: initializer element is not constant
    1022 |  .free =   ccio_free,
         |            ^~~~~~~~~
   drivers/parisc/ccio-dma.c:1022:12: note: (near initialization for 'ccio_ops.free')
   drivers/parisc/ccio-dma.c:1023:15: error: initializer element is not constant
    1023 |  .map_page =  ccio_map_page,
         |               ^~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:1023:15: note: (near initialization for 'ccio_ops.map_page')
   drivers/parisc/ccio-dma.c:1024:17: error: initializer element is not constant
    1024 |  .unmap_page =  ccio_unmap_page,
         |                 ^~~~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:1024:17: note: (near initialization for 'ccio_ops.unmap_page')
   drivers/parisc/ccio-dma.c:1025:13: error: initializer element is not constant
    1025 |  .map_sg =  ccio_map_sg,
         |             ^~~~~~~~~~~
   drivers/parisc/ccio-dma.c:1025:13: note: (near initialization for 'ccio_ops.map_sg')
   drivers/parisc/ccio-dma.c:1026:15: error: initializer element is not constant
    1026 |  .unmap_sg =  ccio_unmap_sg,
         |               ^~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:1026:15: note: (near initialization for 'ccio_ops.unmap_sg')
>> drivers/parisc/ccio-dma.c:1033:12: error: invalid storage class for function 'ccio_proc_info'
    1033 | static int ccio_proc_info(struct seq_file *m, void *p)
         |            ^~~~~~~~~~~~~~
>> drivers/parisc/ccio-dma.c:1099:12: error: invalid storage class for function 'ccio_proc_bitmap_info'
    1099 | static int ccio_proc_bitmap_info(struct seq_file *m, void *p)
         |            ^~~~~~~~~~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:1122:21: error: invalid storage class for function 'ccio_find_ioc'
    1122 | static struct ioc * ccio_find_ioc(int hw_path)
         |                     ^~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:1212:12: error: invalid storage class for function 'ccio_probe'
    1212 | static int ccio_probe(struct parisc_device *dev);
         |            ^~~~~~~~~~
   drivers/parisc/ccio-dma.c:1217:11: error: 'ccio_probe' undeclared (first use in this function); did you mean 'ccio_free'?
    1217 |  .probe = ccio_probe,
         |           ^~~~~~~~~~
         |           ccio_free
   drivers/parisc/ccio-dma.c:1217:11: note: each undeclared identifier is reported only once for each function it appears in
   drivers/parisc/ccio-dma.c:1229:1: error: invalid storage class for function 'ccio_ioc_init'
    1229 | ccio_ioc_init(struct ioc *ioc)
         | ^~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:1350:1: error: invalid storage class for function 'ccio_init_resource'
    1350 | ccio_init_resource(struct resource *res, char *name, void __iomem *ioaddr)
         | ^~~~~~~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:1382:20: error: invalid storage class for function 'ccio_init_resources'
    1382 | static void __init ccio_init_resources(struct ioc *ioc)
         |                    ^~~~~~~~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:1393:12: error: invalid storage class for function 'new_ioc_area'
    1393 | static int new_ioc_area(struct resource *res, unsigned long size,
         |            ^~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:1412:12: error: invalid storage class for function 'expand_ioc_area'
    1412 | static int expand_ioc_area(struct resource *res, unsigned long size,
         |            ^~~~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:1516:19: error: invalid storage class for function 'ccio_probe'
    1516 | static int __init ccio_probe(struct parisc_device *dev)
         |                   ^~~~~~~~~~
   drivers/parisc/ccio-dma.c:1517: confused by earlier errors, bailing out


vim +378 drivers/parisc/ccio-dma.c

^1da177e4c3f41 Linus Torvalds      2005-04-16  329  
^1da177e4c3f41 Linus Torvalds      2005-04-16  330  /**
^1da177e4c3f41 Linus Torvalds      2005-04-16  331   * ccio_alloc_range - Allocate pages in the ioc's resource map.
^1da177e4c3f41 Linus Torvalds      2005-04-16  332   * @ioc: The I/O Controller.
^1da177e4c3f41 Linus Torvalds      2005-04-16  333   * @pages_needed: The requested number of pages to be mapped into the
^1da177e4c3f41 Linus Torvalds      2005-04-16  334   * I/O Pdir...
^1da177e4c3f41 Linus Torvalds      2005-04-16  335   *
^1da177e4c3f41 Linus Torvalds      2005-04-16  336   * This function searches the resource map of the ioc to locate a range
^1da177e4c3f41 Linus Torvalds      2005-04-16  337   * of available pages for the requested size.
^1da177e4c3f41 Linus Torvalds      2005-04-16  338   */
^1da177e4c3f41 Linus Torvalds      2005-04-16  339  static int
7c8cda625acd9b FUJITA Tomonori     2008-03-04  340  ccio_alloc_range(struct ioc *ioc, struct device *dev, size_t size)
^1da177e4c3f41 Linus Torvalds      2005-04-16  341  {
^1da177e4c3f41 Linus Torvalds      2005-04-16  342  	unsigned int pages_needed = size >> IOVP_SHIFT;
^1da177e4c3f41 Linus Torvalds      2005-04-16  343  	unsigned int res_idx;
466634488e8096 FUJITA Tomonori     2008-03-04  344  	unsigned long boundary_size;
1e22166c40a99f Kyle McMartin       2008-07-28  345  #ifdef CCIO_COLLECT_STATS
^1da177e4c3f41 Linus Torvalds      2005-04-16  346  	unsigned long cr_start = mfctl(16);
^1da177e4c3f41 Linus Torvalds      2005-04-16  347  #endif
^1da177e4c3f41 Linus Torvalds      2005-04-16  348  	
^1da177e4c3f41 Linus Torvalds      2005-04-16  349  	BUG_ON(pages_needed == 0);
^1da177e4c3f41 Linus Torvalds      2005-04-16  350  	BUG_ON((pages_needed * IOVP_SIZE) > DMA_CHUNK_SIZE);
^1da177e4c3f41 Linus Torvalds      2005-04-16  351  
^1da177e4c3f41 Linus Torvalds      2005-04-16  352  	DBG_RES("%s() size: %d pages_needed %d\n",
a8043ecb17bd2e Harvey Harrison     2008-05-14  353  			__func__, size, pages_needed);
^1da177e4c3f41 Linus Torvalds      2005-04-16  354  
^1da177e4c3f41 Linus Torvalds      2005-04-16  355  	/*
^1da177e4c3f41 Linus Torvalds      2005-04-16  356  	** "seek and ye shall find"...praying never hurts either...
^1da177e4c3f41 Linus Torvalds      2005-04-16  357  	** ggg sacrifices another 710 to the computer gods.
^1da177e4c3f41 Linus Torvalds      2005-04-16  358  	*/
^1da177e4c3f41 Linus Torvalds      2005-04-16  359  
1e9d90dbed120e Nicolin Chen        2020-09-01  360  	boundary_size = dma_get_seg_boundary_nr_pages(dev, IOVP_SHIFT);
466634488e8096 FUJITA Tomonori     2008-03-04  361  
^1da177e4c3f41 Linus Torvalds      2005-04-16  362  	if (pages_needed <= 8) {
^1da177e4c3f41 Linus Torvalds      2005-04-16  363  		/*
^1da177e4c3f41 Linus Torvalds      2005-04-16  364  		 * LAN traffic will not thrash the TLB IFF the same NIC
4f63ba17086673 Joe Perches         2008-02-03  365  		 * uses 8 adjacent pages to map separate payload data.
^1da177e4c3f41 Linus Torvalds      2005-04-16  366  		 * ie the same byte in the resource bit map.
^1da177e4c3f41 Linus Torvalds      2005-04-16  367  		 */
^1da177e4c3f41 Linus Torvalds      2005-04-16  368  #if 0
^1da177e4c3f41 Linus Torvalds      2005-04-16  369  		/* FIXME: bit search should shift it's way through
^1da177e4c3f41 Linus Torvalds      2005-04-16  370  		 * an unsigned long - not byte at a time. As it is now,
^1da177e4c3f41 Linus Torvalds      2005-04-16  371  		 * we effectively allocate this byte to this mapping.
^1da177e4c3f41 Linus Torvalds      2005-04-16  372  		 */
^1da177e4c3f41 Linus Torvalds      2005-04-16  373  		unsigned long mask = ~(~0UL >> pages_needed);
^1da177e4c3f41 Linus Torvalds      2005-04-16  374  		CCIO_FIND_FREE_MAPPING(ioc, res_idx, mask, 8);
^1da177e4c3f41 Linus Torvalds      2005-04-16  375  #else
^1da177e4c3f41 Linus Torvalds      2005-04-16  376  		CCIO_FIND_FREE_MAPPING(ioc, res_idx, 0xff, 8);
^1da177e4c3f41 Linus Torvalds      2005-04-16  377  #endif
^1da177e4c3f41 Linus Torvalds      2005-04-16 @378  	} else if (pages_needed <= 16) {
^1da177e4c3f41 Linus Torvalds      2005-04-16  379  		CCIO_FIND_FREE_MAPPING(ioc, res_idx, 0xffff, 16);
^1da177e4c3f41 Linus Torvalds      2005-04-16  380  	} else if (pages_needed <= 32) {
^1da177e4c3f41 Linus Torvalds      2005-04-16  381  		CCIO_FIND_FREE_MAPPING(ioc, res_idx, ~(unsigned int)0, 32);
^1da177e4c3f41 Linus Torvalds      2005-04-16  382  #ifdef __LP64__
^1da177e4c3f41 Linus Torvalds      2005-04-16  383  	} else if (pages_needed <= 64) {
^1da177e4c3f41 Linus Torvalds      2005-04-16  384  		CCIO_FIND_FREE_MAPPING(ioc, res_idx, ~0UL, 64);
^1da177e4c3f41 Linus Torvalds      2005-04-16  385  #endif
^1da177e4c3f41 Linus Torvalds      2005-04-16  386  	} else {
^1da177e4c3f41 Linus Torvalds      2005-04-16  387  		panic("%s: %s() Too many pages to map. pages_needed: %u\n",
a8043ecb17bd2e Harvey Harrison     2008-05-14  388  		       __FILE__,  __func__, pages_needed);
^1da177e4c3f41 Linus Torvalds      2005-04-16  389  	}
^1da177e4c3f41 Linus Torvalds      2005-04-16  390  
^1da177e4c3f41 Linus Torvalds      2005-04-16  391  	panic("%s: %s() I/O MMU is out of mapping resources.\n", __FILE__,
a8043ecb17bd2e Harvey Harrison     2008-05-14  392  	      __func__);
^1da177e4c3f41 Linus Torvalds      2005-04-16  393  	
^1da177e4c3f41 Linus Torvalds      2005-04-16  394  resource_found:
^1da177e4c3f41 Linus Torvalds      2005-04-16  395  	
^1da177e4c3f41 Linus Torvalds      2005-04-16  396  	DBG_RES("%s() res_idx %d res_hint: %d\n",
a8043ecb17bd2e Harvey Harrison     2008-05-14  397  		__func__, res_idx, ioc->res_hint);
^1da177e4c3f41 Linus Torvalds      2005-04-16  398  
1e22166c40a99f Kyle McMartin       2008-07-28  399  #ifdef CCIO_COLLECT_STATS
^1da177e4c3f41 Linus Torvalds      2005-04-16  400  	{
^1da177e4c3f41 Linus Torvalds      2005-04-16  401  		unsigned long cr_end = mfctl(16);
^1da177e4c3f41 Linus Torvalds      2005-04-16  402  		unsigned long tmp = cr_end - cr_start;
^1da177e4c3f41 Linus Torvalds      2005-04-16  403  		/* check for roll over */
^1da177e4c3f41 Linus Torvalds      2005-04-16  404  		cr_start = (cr_end < cr_start) ?  -(tmp) : (tmp);
^1da177e4c3f41 Linus Torvalds      2005-04-16  405  	}
^1da177e4c3f41 Linus Torvalds      2005-04-16  406  	ioc->avg_search[ioc->avg_idx++] = cr_start;
^1da177e4c3f41 Linus Torvalds      2005-04-16  407  	ioc->avg_idx &= CCIO_SEARCH_SAMPLE - 1;
^1da177e4c3f41 Linus Torvalds      2005-04-16  408  	ioc->used_pages += pages_needed;
^1da177e4c3f41 Linus Torvalds      2005-04-16  409  #endif
^1da177e4c3f41 Linus Torvalds      2005-04-16  410  	/* 
^1da177e4c3f41 Linus Torvalds      2005-04-16  411  	** return the bit address.
^1da177e4c3f41 Linus Torvalds      2005-04-16  412  	*/
^1da177e4c3f41 Linus Torvalds      2005-04-16  413  	return res_idx << 3;
^1da177e4c3f41 Linus Torvalds      2005-04-16  414  }
^1da177e4c3f41 Linus Torvalds      2005-04-16  415  
^1da177e4c3f41 Linus Torvalds      2005-04-16  416  #define CCIO_FREE_MAPPINGS(ioc, res_idx, mask, size) \
^1da177e4c3f41 Linus Torvalds      2005-04-16  417          u##size *res_ptr = (u##size *)&((ioc)->res_map[res_idx]); \
^1da177e4c3f41 Linus Torvalds      2005-04-16  418          BUG_ON((*res_ptr & mask) != mask); \
^1da177e4c3f41 Linus Torvalds      2005-04-16  419  	*res_ptr &= ~(mask);
^1da177e4c3f41 Linus Torvalds      2005-04-16  420  
^1da177e4c3f41 Linus Torvalds      2005-04-16  421  /**
^1da177e4c3f41 Linus Torvalds      2005-04-16  422   * ccio_free_range - Free pages from the ioc's resource map.
^1da177e4c3f41 Linus Torvalds      2005-04-16  423   * @ioc: The I/O Controller.
^1da177e4c3f41 Linus Torvalds      2005-04-16  424   * @iova: The I/O Virtual Address.
^1da177e4c3f41 Linus Torvalds      2005-04-16  425   * @pages_mapped: The requested number of pages to be freed from the
^1da177e4c3f41 Linus Torvalds      2005-04-16  426   * I/O Pdir.
^1da177e4c3f41 Linus Torvalds      2005-04-16  427   *
^1da177e4c3f41 Linus Torvalds      2005-04-16  428   * This function frees the resouces allocated for the iova.
^1da177e4c3f41 Linus Torvalds      2005-04-16  429   */
^1da177e4c3f41 Linus Torvalds      2005-04-16  430  static void
^1da177e4c3f41 Linus Torvalds      2005-04-16 @431  ccio_free_range(struct ioc *ioc, dma_addr_t iova, unsigned long pages_mapped)
^1da177e4c3f41 Linus Torvalds      2005-04-16  432  {
^1da177e4c3f41 Linus Torvalds      2005-04-16  433  	unsigned long iovp = CCIO_IOVP(iova);
^1da177e4c3f41 Linus Torvalds      2005-04-16  434  	unsigned int res_idx = PDIR_INDEX(iovp) >> 3;
^1da177e4c3f41 Linus Torvalds      2005-04-16  435  
^1da177e4c3f41 Linus Torvalds      2005-04-16  436  	BUG_ON(pages_mapped == 0);
^1da177e4c3f41 Linus Torvalds      2005-04-16  437  	BUG_ON((pages_mapped * IOVP_SIZE) > DMA_CHUNK_SIZE);
^1da177e4c3f41 Linus Torvalds      2005-04-16  438  	BUG_ON(pages_mapped > BITS_PER_LONG);
^1da177e4c3f41 Linus Torvalds      2005-04-16  439  
^1da177e4c3f41 Linus Torvalds      2005-04-16  440  	DBG_RES("%s():  res_idx: %d pages_mapped %d\n", 
a8043ecb17bd2e Harvey Harrison     2008-05-14  441  		__func__, res_idx, pages_mapped);
^1da177e4c3f41 Linus Torvalds      2005-04-16  442  
1e22166c40a99f Kyle McMartin       2008-07-28  443  #ifdef CCIO_COLLECT_STATS
^1da177e4c3f41 Linus Torvalds      2005-04-16  444  	ioc->used_pages -= pages_mapped;
^1da177e4c3f41 Linus Torvalds      2005-04-16  445  #endif
^1da177e4c3f41 Linus Torvalds      2005-04-16  446  
^1da177e4c3f41 Linus Torvalds      2005-04-16  447  	if(pages_mapped <= 8) {
^1da177e4c3f41 Linus Torvalds      2005-04-16  448  #if 0
^1da177e4c3f41 Linus Torvalds      2005-04-16  449  		/* see matching comments in alloc_range */
^1da177e4c3f41 Linus Torvalds      2005-04-16  450  		unsigned long mask = ~(~0UL >> pages_mapped);
^1da177e4c3f41 Linus Torvalds      2005-04-16  451  		CCIO_FREE_MAPPINGS(ioc, res_idx, mask, 8);
^1da177e4c3f41 Linus Torvalds      2005-04-16  452  #else
c18b4608958ff4 Alexander Beregalov 2009-03-19  453  		CCIO_FREE_MAPPINGS(ioc, res_idx, 0xffUL, 8);
^1da177e4c3f41 Linus Torvalds      2005-04-16  454  #endif
^1da177e4c3f41 Linus Torvalds      2005-04-16  455  	} else if(pages_mapped <= 16) {
c18b4608958ff4 Alexander Beregalov 2009-03-19  456  		CCIO_FREE_MAPPINGS(ioc, res_idx, 0xffffUL, 16);
^1da177e4c3f41 Linus Torvalds      2005-04-16  457  	} else if(pages_mapped <= 32) {
^1da177e4c3f41 Linus Torvalds      2005-04-16  458  		CCIO_FREE_MAPPINGS(ioc, res_idx, ~(unsigned int)0, 32);
^1da177e4c3f41 Linus Torvalds      2005-04-16  459  #ifdef __LP64__
^1da177e4c3f41 Linus Torvalds      2005-04-16  460  	} else if(pages_mapped <= 64) {
^1da177e4c3f41 Linus Torvalds      2005-04-16  461  		CCIO_FREE_MAPPINGS(ioc, res_idx, ~0UL, 64);
^1da177e4c3f41 Linus Torvalds      2005-04-16  462  #endif
^1da177e4c3f41 Linus Torvalds      2005-04-16  463  	} else {
^1da177e4c3f41 Linus Torvalds      2005-04-16  464  		panic("%s:%s() Too many pages to unmap.\n", __FILE__,
a8043ecb17bd2e Harvey Harrison     2008-05-14  465  		      __func__);
^1da177e4c3f41 Linus Torvalds      2005-04-16  466  	}
^1da177e4c3f41 Linus Torvalds      2005-04-16  467  }
^1da177e4c3f41 Linus Torvalds      2005-04-16  468  
^1da177e4c3f41 Linus Torvalds      2005-04-16  469  /****************************************************************
^1da177e4c3f41 Linus Torvalds      2005-04-16  470  **
^1da177e4c3f41 Linus Torvalds      2005-04-16  471  **          CCIO dma_ops support routines
^1da177e4c3f41 Linus Torvalds      2005-04-16  472  **
^1da177e4c3f41 Linus Torvalds      2005-04-16  473  *****************************************************************/
^1da177e4c3f41 Linus Torvalds      2005-04-16  474  
^1da177e4c3f41 Linus Torvalds      2005-04-16  475  typedef unsigned long space_t;
^1da177e4c3f41 Linus Torvalds      2005-04-16  476  #define KERNEL_SPACE 0
^1da177e4c3f41 Linus Torvalds      2005-04-16  477  
^1da177e4c3f41 Linus Torvalds      2005-04-16  478  /*
^1da177e4c3f41 Linus Torvalds      2005-04-16  479  ** DMA "Page Type" and Hints 
^1da177e4c3f41 Linus Torvalds      2005-04-16  480  ** o if SAFE_DMA isn't set, mapping is for FAST_DMA. SAFE_DMA should be
^1da177e4c3f41 Linus Torvalds      2005-04-16  481  **   set for subcacheline DMA transfers since we don't want to damage the
^1da177e4c3f41 Linus Torvalds      2005-04-16  482  **   other part of a cacheline.
^1da177e4c3f41 Linus Torvalds      2005-04-16  483  ** o SAFE_DMA must be set for "memory" allocated via pci_alloc_consistent().
^1da177e4c3f41 Linus Torvalds      2005-04-16  484  **   This bit tells U2 to do R/M/W for partial cachelines. "Streaming"
^1da177e4c3f41 Linus Torvalds      2005-04-16  485  **   data can avoid this if the mapping covers full cache lines.
^1da177e4c3f41 Linus Torvalds      2005-04-16  486  ** o STOP_MOST is needed for atomicity across cachelines.
0779bf2d2ecc4d Matt LaPlante       2006-11-30  487  **   Apparently only "some EISA devices" need this.
^1da177e4c3f41 Linus Torvalds      2005-04-16  488  **   Using CONFIG_ISA is hack. Only the IOA with EISA under it needs
^1da177e4c3f41 Linus Torvalds      2005-04-16  489  **   to use this hint iff the EISA devices needs this feature.
^1da177e4c3f41 Linus Torvalds      2005-04-16  490  **   According to the U2 ERS, STOP_MOST enabled pages hurt performance.
^1da177e4c3f41 Linus Torvalds      2005-04-16  491  ** o PREFETCH should *not* be set for cases like Multiple PCI devices
^1da177e4c3f41 Linus Torvalds      2005-04-16  492  **   behind GSCtoPCI (dino) bus converter. Only one cacheline per GSC
^1da177e4c3f41 Linus Torvalds      2005-04-16  493  **   device can be fetched and multiply DMA streams will thrash the
^1da177e4c3f41 Linus Torvalds      2005-04-16  494  **   prefetch buffer and burn memory bandwidth. See 6.7.3 "Prefetch Rules
^1da177e4c3f41 Linus Torvalds      2005-04-16  495  **   and Invalidation of Prefetch Entries".
^1da177e4c3f41 Linus Torvalds      2005-04-16  496  **
^1da177e4c3f41 Linus Torvalds      2005-04-16  497  ** FIXME: the default hints need to be per GSC device - not global.
^1da177e4c3f41 Linus Torvalds      2005-04-16  498  ** 
^1da177e4c3f41 Linus Torvalds      2005-04-16  499  ** HP-UX dorks: linux device driver programming model is totally different
^1da177e4c3f41 Linus Torvalds      2005-04-16  500  **    than HP-UX's. HP-UX always sets HINT_PREFETCH since it's drivers
^1da177e4c3f41 Linus Torvalds      2005-04-16  501  **    do special things to work on non-coherent platforms...linux has to
^1da177e4c3f41 Linus Torvalds      2005-04-16  502  **    be much more careful with this.
^1da177e4c3f41 Linus Torvalds      2005-04-16  503  */
^1da177e4c3f41 Linus Torvalds      2005-04-16  504  #define IOPDIR_VALID    0x01UL
^1da177e4c3f41 Linus Torvalds      2005-04-16  505  #define HINT_SAFE_DMA   0x02UL	/* used for pci_alloc_consistent() pages */
^1da177e4c3f41 Linus Torvalds      2005-04-16  506  #ifdef CONFIG_EISA
^1da177e4c3f41 Linus Torvalds      2005-04-16  507  #define HINT_STOP_MOST  0x04UL	/* LSL support */
^1da177e4c3f41 Linus Torvalds      2005-04-16  508  #else
^1da177e4c3f41 Linus Torvalds      2005-04-16  509  #define HINT_STOP_MOST  0x00UL	/* only needed for "some EISA devices" */
^1da177e4c3f41 Linus Torvalds      2005-04-16  510  #endif
^1da177e4c3f41 Linus Torvalds      2005-04-16  511  #define HINT_UDPATE_ENB 0x08UL  /* not used/supported by U2 */
^1da177e4c3f41 Linus Torvalds      2005-04-16  512  #define HINT_PREFETCH   0x10UL	/* for outbound pages which are not SAFE */
^1da177e4c3f41 Linus Torvalds      2005-04-16  513  
^1da177e4c3f41 Linus Torvalds      2005-04-16  514  
^1da177e4c3f41 Linus Torvalds      2005-04-16  515  /*
^1da177e4c3f41 Linus Torvalds      2005-04-16  516  ** Use direction (ie PCI_DMA_TODEVICE) to pick hint.
^1da177e4c3f41 Linus Torvalds      2005-04-16  517  ** ccio_alloc_consistent() depends on this to get SAFE_DMA
^1da177e4c3f41 Linus Torvalds      2005-04-16  518  ** when it passes in BIDIRECTIONAL flag.
^1da177e4c3f41 Linus Torvalds      2005-04-16  519  */
^1da177e4c3f41 Linus Torvalds      2005-04-16  520  static u32 hint_lookup[] = {
^1da177e4c3f41 Linus Torvalds      2005-04-16  521  	[PCI_DMA_BIDIRECTIONAL]	= HINT_STOP_MOST | HINT_SAFE_DMA | IOPDIR_VALID,
^1da177e4c3f41 Linus Torvalds      2005-04-16  522  	[PCI_DMA_TODEVICE]	= HINT_STOP_MOST | HINT_PREFETCH | IOPDIR_VALID,
^1da177e4c3f41 Linus Torvalds      2005-04-16  523  	[PCI_DMA_FROMDEVICE]	= HINT_STOP_MOST | IOPDIR_VALID,
^1da177e4c3f41 Linus Torvalds      2005-04-16  524  };
^1da177e4c3f41 Linus Torvalds      2005-04-16  525  
^1da177e4c3f41 Linus Torvalds      2005-04-16  526  /**
^1da177e4c3f41 Linus Torvalds      2005-04-16  527   * ccio_io_pdir_entry - Initialize an I/O Pdir.
^1da177e4c3f41 Linus Torvalds      2005-04-16  528   * @pdir_ptr: A pointer into I/O Pdir.
^1da177e4c3f41 Linus Torvalds      2005-04-16  529   * @sid: The Space Identifier.
^1da177e4c3f41 Linus Torvalds      2005-04-16  530   * @vba: The virtual address.
^1da177e4c3f41 Linus Torvalds      2005-04-16  531   * @hints: The DMA Hint.
^1da177e4c3f41 Linus Torvalds      2005-04-16  532   *
^1da177e4c3f41 Linus Torvalds      2005-04-16  533   * Given a virtual address (vba, arg2) and space id, (sid, arg1),
^1da177e4c3f41 Linus Torvalds      2005-04-16  534   * load the I/O PDIR entry pointed to by pdir_ptr (arg0). Each IO Pdir
^1da177e4c3f41 Linus Torvalds      2005-04-16  535   * entry consists of 8 bytes as shown below (MSB == bit 0):
^1da177e4c3f41 Linus Torvalds      2005-04-16  536   *
^1da177e4c3f41 Linus Torvalds      2005-04-16  537   *
^1da177e4c3f41 Linus Torvalds      2005-04-16  538   * WORD 0:
^1da177e4c3f41 Linus Torvalds      2005-04-16  539   * +------+----------------+-----------------------------------------------+
^1da177e4c3f41 Linus Torvalds      2005-04-16  540   * | Phys | Virtual Index  |               Phys                            |
^1da177e4c3f41 Linus Torvalds      2005-04-16  541   * | 0:3  |     0:11       |               4:19                            |
^1da177e4c3f41 Linus Torvalds      2005-04-16  542   * |4 bits|   12 bits      |              16 bits                          |
^1da177e4c3f41 Linus Torvalds      2005-04-16  543   * +------+----------------+-----------------------------------------------+
^1da177e4c3f41 Linus Torvalds      2005-04-16  544   * WORD 1:
^1da177e4c3f41 Linus Torvalds      2005-04-16  545   * +-----------------------+-----------------------------------------------+
^1da177e4c3f41 Linus Torvalds      2005-04-16  546   * |      Phys    |  Rsvd  | Prefetch |Update |Rsvd  |Lock  |Safe  |Valid  |
^1da177e4c3f41 Linus Torvalds      2005-04-16  547   * |     20:39    |        | Enable   |Enable |      |Enable|DMA   |       |
^1da177e4c3f41 Linus Torvalds      2005-04-16  548   * |    20 bits   | 5 bits | 1 bit    |1 bit  |2 bits|1 bit |1 bit |1 bit  |
^1da177e4c3f41 Linus Torvalds      2005-04-16  549   * +-----------------------+-----------------------------------------------+
^1da177e4c3f41 Linus Torvalds      2005-04-16  550   *
^1da177e4c3f41 Linus Torvalds      2005-04-16  551   * The virtual index field is filled with the results of the LCI
^1da177e4c3f41 Linus Torvalds      2005-04-16  552   * (Load Coherence Index) instruction.  The 8 bits used for the virtual
^1da177e4c3f41 Linus Torvalds      2005-04-16  553   * index are bits 12:19 of the value returned by LCI.
^1da177e4c3f41 Linus Torvalds      2005-04-16  554   */ 
df8e5bc6b7b61c Adrian Bunk         2008-12-02  555  static void CCIO_INLINE
^1da177e4c3f41 Linus Torvalds      2005-04-16 @556  ccio_io_pdir_entry(u64 *pdir_ptr, space_t sid, unsigned long vba,
^1da177e4c3f41 Linus Torvalds      2005-04-16  557  		   unsigned long hints)
^1da177e4c3f41 Linus Torvalds      2005-04-16  558  {
^1da177e4c3f41 Linus Torvalds      2005-04-16  559  	register unsigned long pa;
^1da177e4c3f41 Linus Torvalds      2005-04-16  560  	register unsigned long ci; /* coherent index */
^1da177e4c3f41 Linus Torvalds      2005-04-16  561  
^1da177e4c3f41 Linus Torvalds      2005-04-16  562  	/* We currently only support kernel addresses */
^1da177e4c3f41 Linus Torvalds      2005-04-16  563  	BUG_ON(sid != KERNEL_SPACE);
^1da177e4c3f41 Linus Torvalds      2005-04-16  564  
^1da177e4c3f41 Linus Torvalds      2005-04-16  565  	/*
^1da177e4c3f41 Linus Torvalds      2005-04-16  566  	** WORD 1 - low order word
^1da177e4c3f41 Linus Torvalds      2005-04-16  567  	** "hints" parm includes the VALID bit!
^1da177e4c3f41 Linus Torvalds      2005-04-16  568  	** "dep" clobbers the physical address offset bits as well.
^1da177e4c3f41 Linus Torvalds      2005-04-16  569  	*/
116d753308cf03 John David Anglin   2019-06-02  570  	pa = lpa(vba);
^1da177e4c3f41 Linus Torvalds      2005-04-16  571  	asm volatile("depw  %1,31,12,%0" : "+r" (pa) : "r" (hints));
^1da177e4c3f41 Linus Torvalds      2005-04-16  572  	((u32 *)pdir_ptr)[1] = (u32) pa;
^1da177e4c3f41 Linus Torvalds      2005-04-16  573  
^1da177e4c3f41 Linus Torvalds      2005-04-16  574  	/*
^1da177e4c3f41 Linus Torvalds      2005-04-16  575  	** WORD 0 - high order word
^1da177e4c3f41 Linus Torvalds      2005-04-16  576  	*/
^1da177e4c3f41 Linus Torvalds      2005-04-16  577  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
diff mbox series

Patch

diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index b5f9ee81a46c..9b777357e8cb 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -111,29 +111,29 @@ 
 #define CMD_TLB_PURGE        33         /* IO_COMMAND to Purge I/O TLB entry */
 
 struct ioa_registers {
-        /* Runway Supervisory Set */
-        int32_t    unused1[12];
-        uint32_t   io_command;             /* Offset 12 */
-        uint32_t   io_status;              /* Offset 13 */
-        uint32_t   io_control;             /* Offset 14 */
-        int32_t    unused2[1];
-
-        /* Runway Auxiliary Register Set */
-        uint32_t   io_err_resp;            /* Offset  0 */
-        uint32_t   io_err_info;            /* Offset  1 */
-        uint32_t   io_err_req;             /* Offset  2 */
-        uint32_t   io_err_resp_hi;         /* Offset  3 */
-        uint32_t   io_tlb_entry_m;         /* Offset  4 */
-        uint32_t   io_tlb_entry_l;         /* Offset  5 */
-        uint32_t   unused3[1];
-        uint32_t   io_pdir_base;           /* Offset  7 */
-        uint32_t   io_io_low_hv;           /* Offset  8 */
-        uint32_t   io_io_high_hv;          /* Offset  9 */
-        uint32_t   unused4[1];
-        uint32_t   io_chain_id_mask;       /* Offset 11 */
-        uint32_t   unused5[2];
-        uint32_t   io_io_low;              /* Offset 14 */
-        uint32_t   io_io_high;             /* Offset 15 */
+	/* Runway Supervisory Set */
+	int32_t    unused1[12];
+	uint32_t   io_command;             /* Offset 12 */
+	uint32_t   io_status;              /* Offset 13 */
+	uint32_t   io_control;             /* Offset 14 */
+	int32_t    unused2[1];
+
+	/* Runway Auxiliary Register Set */
+	uint32_t   io_err_resp;            /* Offset  0 */
+	uint32_t   io_err_info;            /* Offset  1 */
+	uint32_t   io_err_req;             /* Offset  2 */
+	uint32_t   io_err_resp_hi;         /* Offset  3 */
+	uint32_t   io_tlb_entry_m;         /* Offset  4 */
+	uint32_t   io_tlb_entry_l;         /* Offset  5 */
+	uint32_t   unused3[1];
+	uint32_t   io_pdir_base;           /* Offset  7 */
+	uint32_t   io_io_low_hv;           /* Offset  8 */
+	uint32_t   io_io_high_hv;          /* Offset  9 */
+	uint32_t   unused4[1];
+	uint32_t   io_chain_id_mask;       /* Offset 11 */
+	uint32_t   unused5[2];
+	uint32_t   io_io_low;              /* Offset 14 */
+	uint32_t   io_io_high;             /* Offset 15 */
 };
 
 /*
@@ -198,7 +198,7 @@  struct ioa_registers {
 ** In order for a Runway address to reside within GSC+ extended address space:
 **	Runway Address [0:7]    must identically compare to 8'b11111111
 **	Runway Address [8:11]   must be equal to IO_IO_LOW(_HV)[16:19]
-** 	Runway Address [12:23]  must be greater than or equal to
+**	Runway Address [12:23]  must be greater than or equal to
 **	           IO_IO_LOW(_HV)[20:31] and less than IO_IO_HIGH(_HV)[20:31].
 **	Runway Address [24:39]  is not used in the comparison.
 **
@@ -226,10 +226,10 @@  struct ioc {
 	struct ioa_registers __iomem *ioc_regs;  /* I/O MMU base address */
 	u8  *res_map;	                /* resource map, bit == pdir entry */
 	u64 *pdir_base;	                /* physical base address */
-	u32 pdir_size; 			/* bytes, function of IOV Space size */
-	u32 res_hint;	                /* next available IOVP - 
+	u32 pdir_size;			/* bytes, function of IOV Space size */
+	u32 res_hint;			/* next available IOVP -
 					   circular search */
-	u32 res_size;		    	/* size of resource map in bytes */
+	u32 res_size;			/* size of resource map in bytes */
 	spinlock_t res_lock;
 
 #ifdef CCIO_COLLECT_STATS
@@ -249,7 +249,7 @@  struct ioc {
 	unsigned short cujo20_bug;
 
 	/* STUFF We don't need in performance path */
-	u32 chainid_shift; 		/* specify bit location of chain_id */
+	u32 chainid_shift;		/* specify bit location of chain_id */
 	struct ioc *next;		/* Linked list of discovered iocs */
 	const char *name;		/* device name from firmware */
 	unsigned int hw_path;           /* the hardware path this ioc is associatd with */
@@ -293,7 +293,7 @@  static int ioc_count;
 ** cause the kernel to panic anyhow.
 */
 #define CCIO_SEARCH_LOOP(ioc, res_idx, mask, size)  \
-       for(; res_ptr < res_end; ++res_ptr) { \
+	for (; res_ptr < res_end; ++res_ptr) { \
 		int ret;\
 		unsigned int idx;\
 		idx = (unsigned int)((unsigned long)res_ptr - (unsigned long)ioc->res_map); \
@@ -303,15 +303,15 @@  static int ioc_count;
 			res_idx = idx;\
 			ioc->res_hint = res_idx + (size >> 3); \
 			goto resource_found; \
-		} \
+		  \
 	}
 
 #define CCIO_FIND_FREE_MAPPING(ioa, res_idx, mask, size) \
        u##size *res_ptr = (u##size *)&((ioc)->res_map[ioa->res_hint & ~((size >> 3) - 1)]); \
        u##size *res_end = (u##size *)&(ioc)->res_map[ioa->res_size]; \
-       CCIO_SEARCH_LOOP(ioc, res_idx, mask, size); \
-       res_ptr = (u##size *)&(ioc)->res_map[0]; \
-       CCIO_SEARCH_LOOP(ioa, res_idx, mask, size);
+	CCIO_SEARCH_LOOP(ioc, res_idx, mask, size); \
+	res_ptr = (u##size *)&(ioc)->res_map[0]; \
+	CCIO_SEARCH_LOOP(ioa, res_idx, mask, size);
 
 /*
 ** Find available bit in this ioa's resource map.
@@ -348,9 +348,9 @@  ccio_alloc_range(struct ioc *ioc, struct device *dev, size_t size)
 	
 	BUG_ON(pages_needed == 0);
 	BUG_ON((pages_needed * IOVP_SIZE) > DMA_CHUNK_SIZE);
-     
-	DBG_RES("%s() size: %d pages_needed %d\n", 
-		__func__, size, pages_needed);
+
+	DBG_RES("%s() size: %d pages_needed %d\n",
+			__func__, size, pages_needed);
 
 	/*
 	** "seek and ye shall find"...praying never hurts either...
@@ -416,7 +416,7 @@  ccio_alloc_range(struct ioc *ioc, struct device *dev, size_t size)
 #define CCIO_FREE_MAPPINGS(ioc, res_idx, mask, size) \
         u##size *res_ptr = (u##size *)&((ioc)->res_map[res_idx]); \
         BUG_ON((*res_ptr & mask) != mask); \
-        *res_ptr &= ~(mask);
+	*res_ptr &= ~(mask);
 
 /**
  * ccio_free_range - Free pages from the ioc's resource map.
@@ -845,7 +845,7 @@  static void *
 ccio_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag,
 		unsigned long attrs)
 {
-      void *ret;
+	void *ret;
 #if 0
 /* GRANT Need to establish hierarchy for non-PCI devs as well
 ** and then provide matching gsc_map_xxx() functions for them as well.
@@ -856,7 +856,7 @@  ccio_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag,
 		return 0;
 	}
 #endif
-        ret = (void *) __get_free_pages(flag, get_order(size));
+	ret = (void *) __get_free_pages(flag, get_order(size));
 
 	if (ret) {
 		memset(ret, 0, size);
@@ -1022,8 +1022,8 @@  static const struct dma_map_ops ccio_ops = {
 	.free =			ccio_free,
 	.map_page =		ccio_map_page,
 	.unmap_page =		ccio_unmap_page,
-	.map_sg = 		ccio_map_sg,
-	.unmap_sg = 		ccio_unmap_sg,
+	.map_sg =		ccio_map_sg,
+	.unmap_sg =		ccio_unmap_sg,
 	.get_sgtable =		dma_common_get_sgtable,
 	.alloc_pages =		dma_common_alloc_pages,
 	.free_pages =		dma_common_free_pages,
@@ -1080,7 +1080,7 @@  static int ccio_proc_info(struct seq_file *m, void *p)
 		max = ioc->usingle_pages - ioc->usg_pages;
 		seq_printf(m, "pci_unmap_single: %8ld calls  %8ld pages (avg %d/1000)\n",
 			   min, max, (int)((max * 1000)/min));
- 
+
 		seq_printf(m, "pci_map_sg()    : %8ld calls  %8ld pages (avg %d/1000)\n",
 			   ioc->msg_calls, ioc->msg_pages,
 			   (int)((ioc->msg_pages * 1000)/ioc->msg_calls));
@@ -1169,7 +1169,7 @@  void __init ccio_cujo20_fixup(struct parisc_device *cujo, u32 iovp)
 	idx = PDIR_INDEX(iovp) >> 3;
 
 	while (idx < ioc->res_size) {
- 		res_ptr[idx] |= 0xff;
+		res_ptr[idx] |= 0xff;
 		idx += PDIR_INDEX(CUJO_20_STEP) >> 3;
 	}
 }
@@ -1297,7 +1297,7 @@  ccio_ioc_init(struct ioc *ioc)
 	DBG_INIT(" base %p\n", ioc->pdir_base);
 
 	/* resource map size dictated by pdir_size */
- 	ioc->res_size = (ioc->pdir_size / sizeof(u64)) >> 3;
+	ioc->res_size = (ioc->pdir_size / sizeof(u64)) >> 3;
 	DBG_INIT("%s() res_size 0x%x\n", __func__, ioc->res_size);
 	
 	ioc->res_map = (u8 *)__get_free_pages(GFP_KERNEL,